EDIT: Here are some thoughts....
1) If Humans had not existed, nature would have thrived. What other purpose would there have been for humans other than to have been God's vicegerent if everything they touch and settle on dies, even during the prehistoric era (yes, even then, as prehistoric humans would migrate from place to place after wiping out all the resources and decimating it), and given the current level of sophistication man has gone to which has given him the ability to wipe out all life? clearly, this is different than what even lions are like, who live as part of an ecosystem in harmony.
2) everything has an originator, but if we were to deny the existence of God, there would be an endless loop of originators, and this would be a logical fallacy. sure, big bang, sure, no time before big bang, but what created the singularity? what caused the big bang?
3) (words of M. Fethullah Gulen): everything is contingent. anything can exist at any time, and at anywhere, in any form, and with any character, nothing or no one has a role in determining the way, time and place of its coming into existence, and nonexistence, giving it unique characterisitics. this power must be infinite, have absolute will, and all comprehensive knowledge.....necessarily, it is God.
4) everything which is evil can be said to be form of destruction and non existence, and everything good and beautiful can be said to be a form of existence and creation. for instance, curing a sick person, thus restoring them to life. existence. creating children within the bounds of marriage so that they may grow up with parents to provide for them and love them, all within the bounds of modesty to ensure the protection by parents. existence. familia and friendshiip bonds which ensure aid in time of need. existence and creation. hard work, thus ensuring the growth of a business, creation.
HOWEVER, destroying a building through arson, destruction and non existence. using the same desires you used to start a family to have an illicit sexual affair, such as adultery, rape (yes, rape, rape originates in lust, and later evolves into a form of dominance, however much the feminazis deny it), or fornication which result in children born out of wedlock and or break up of families, destruction. murder, non existence and destruction, evolving from the same instinct used to protect ones family, or nation in war. thus, islam (and all religions'....perhaps)'s commandments are meant to ensure the preservation of existence and the prevention of non existence. this points to a creator.
5)life is a riddle (Gulen's words): scientists cannot explain it with material causes ot discover its origin and transparent it displays a creative power. given this, life declares, "God created me"
6)everything that exists and the universe as a whole, displa a magnificient harmony and order in themselves, and in their interrelationships (Gulen's words): The existence of one part necessitates the existence of the whole, and the whole requres the existence of all parts for its own existence. for example, a deformed cell may destroy an entire body. similarly, a pomegranate, requires the collaborative and cooperative existence of air water and soil and the sun, as well as heir mutual and well balanced cooperation for its existence. this harmony and cooperation point to a creation of order, who knows the realtionships and characteristics of everything, and who can order everything. the creator of order is God.
7)whatever has been created has purpose (Gulen)
8) all living and non living beings can not meet almost any of their own needs on their own. for example, the universe can operate and maintain itself only by such universal laws as growth and reproduction, gravitation and repulsion, but these so called "natural laws" have no actual external, visible, or material existence, they are nominal. how can something nominal, completely devoid of knowledge and consciousness, be responsible for such a miraculous creation that requires absolute power and absolute knowledge, wisdom, choice, and preference? (Gulen)